RFC: Gitpod usage

Gitpod and the almost identical clone, GitHub codespaces, give a rather effective IDE for codeworld Haskell mode. You can try out mine here: https://github.com/3noch/haskell-gitpod-template/tree/codeworld (The output is automatically updated with `ghcid --run` and you can open the served port in the editor as a side-by-side tab.)

I'm curious if this would be useful to others somehow. How can it be improved? Would it make any sense to support this as an official "deployment" target? The only dependency (currently) is `codeworld-api` but I hope to eventually go all the way to serving GHCJS output like code.world does. Interactive programs are slow without that.